A random sample of seven measurements gave and s2 = 1.84.
a. What assumptions must you make concerning the population in order to test a hypothesis about σ2?
b. Suppose the assumptions in part a are satisfied. Test the null hypothesis σ2 = 1 against the alternative hypothesis σ2 > 1. Use α =.05.
c. Suppose the test statistic is χ = 14.45. Use Table to find the approximate p -value of the test.
d. Test the null hypothesis σ2 = 1 against the alternative hypothesis σ2 ≠ 1. Use α =.05.
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